Hydrogen ion concentration as pH, 2018

Choropleth map of the United States showing pH concentrations with more acidic concentrations (5-4.7 pH)  in the Southeastern US

Detailed Description

Hydrogen ion concentrations as pH from measurements made at the Central Analytical Laboratory, 2018.


Image Dimensions: 1330 x 995

Location Taken: US


National Atmospheric Deposition Program (NRSP-3). 2021. NADP Program Office, Wisconsin State Laboratory of Hygiene, 465 Henry Mall, Madison, WI 53706.